<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>五子棋对战平台</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            background-color: #1e293b;
            color: #f8fafc;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100vh;
        }
        .container {
            text-align: center;
            padding: 20px;
        }
        h1 {
            color: #3b82f6;
            margin-bottom: 20px;
        }
        .buttons {
            display: flex;
            flex-direction: column;
            gap: 15px;
            width: 100%;
            max-width: 300px;
        }
        .btn {
            padding: 12px 20px;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            cursor: pointer;
            text-decoration: none;
            display: block;
        }
        .login-btn {
            background-color: #3b82f6;
            color: white;
        }
        .register-btn {
            background-color: #10b981;
            color: white;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>五子棋对战平台</h1>
        <div class="buttons">
            <a href="login.html" class="btn login-btn">登录</a>
            <a href="register.html" class="btn register-btn">注册</a>
        </div>
    </div>
</body>
</html>